宫颈内口缩复术药物治疗前置胎盘体会

目的：限制和延缓子宫下段形成,推迟阴道大出血的发生。方法：对6例25周~30周前置胎盘的病人进行宫颈缩复术加药物治疗。结果：6例前置胎盘的患者,经治疗后平均胎龄达37周,新生儿体重达2 850g。结论：宫颈内口缩复术与药物处理前置胎盘明显延长了妊娠时间。

宫颈内口缩复术与药物处理前置胎盘体会

前置胎盘迄今仍是威胁孕产妇和围产儿安全的一种严重妊娠并发症,现行的处理的方法不外乎期待和终止妊娠二种,程度严重的前置胎盘患者,往往于妊娠早期即出现阴道流血,尚不顾及胎儿成熟因素及母亲安全,被迫过早终止妊娠,围产儿病死率较高,出血不严重者为提高围产儿存活能力而采取期待疗法,但过去的期待疗法实质是消极等待,一旦发生阴道大出血只好终止妊娠,且为了拯救母亲常作古典式剖宫产。

无痛人流对女性生理和心理的影响

目的了解无痛人流对育龄期妇女心理和生理上的影响。方法分析 60例在我院实行无痛人流的患者在术后的心理反应、人流综合征的发生率、术后宫腔缩复情况以及术后阴道流血时间 ,与同期未应用无痛术进行人流的 60例患者进行对照。结果无痛人流患者的心理反应良好 (P <0 .0 1 ) ,人流综合征发生率低 (P <0 .0 5 )。术后宫腔缩复情况及阴道流血时间与对照组无明显差异 (P >0 .0 5 )。

A complexity-scalable software-based MPEG-2 video encoder

With the development of general-purpose processors (GPP) and video signal processing algorithms, it is possible to implement a software-based real-time video encoder on GPP, and its low cost and easy upgrade attract developers' interests to transfer video encoding from specialized hardware to more flexible software. In this paper, the encoding structure is set up first to support complexity scalability; then a lot of high performance algorithms are used on the key time-consuming modules in coding process; finally, at programming level, processor characteristics are considered to improve data access efficiency and processing parallelism. Other programming methods such as lookup table are adopted to reduce the computational complexity. Simulation results showed that these ideas could not only improve the global performance of video coding, but also provide great flexibility in complexity regulation.